CN102501949B - Truss type platform with multiple upright columns - Google Patents
Truss type platform with multiple upright columns Download PDFInfo
- Publication number
- CN102501949B CN102501949B CN201110445755.9A CN201110445755A CN102501949B CN 102501949 B CN102501949 B CN 102501949B CN 201110445755 A CN201110445755 A CN 201110445755A CN 102501949 B CN102501949 B CN 102501949B
- Authority
- CN
- China
- Prior art keywords
- cabin
- truss
- center well
- platform
- hard cabin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The invention discloses a truss type platform with multiple upright columns, which comprises an upper platform body, a hard cabin, a section type center well upright column, a truss type middle section, a heave plate, a soft cabin, a mooring system and an upright tube system. The truss type platform with multiple upright columns is characterized in that the hard cabin consists of four cylinders, the upper end of the hard cabin is fixedly connected with the upper platform body, a cable chock is disposed at the lower end of the hard cabin, the lower end of the hard cabin is fixedly connected with the upper end of the truss type middle section corresponding to the hard cabin, and the lower end of the truss type middle section is fixedly connected with the soft cabin. The section type center well upright column is disposed in the center of the hard cabin and consists of two section closed type center well upright columns, and the mooring system is fixedly connected with the cable chock at the lower end of the hard cabin. The truss type platform has excellent stability and an excellent movement performance, is fine in integral structural strength, easy in construction, low in transport and installation cost and wide in applicable operational water area range, can realize short-distance automatic propulsion, and can be used for exploiting deep-sea oilfields, shallow-sea oilfields or marginal oilfields.
Description
Technical field
The present invention relates to a kind of many columns truss-like oil production platform of field of ocean engineering, particularly about a kind of many columns truss type platform that is applicable to deep-sea and ultra-abyssal oil-gas mining and production.
Background technology
Along with becoming increasingly conspicuous and the continuous progress of engineering technology of energy problem, field of petroleum exploitation is moved towards shallow sea by land, and further moves towards Ji Chao deep-sea, deep-sea.Jack-up platform, semisubmersible platform, tension leg platform, are current conventional offshore oil production equipment at Spar platform.
Jack-up platform spud leg liftable, convenient displacement, but along with the depth of water increases, spud leg cost increases sharply, and is unsuitable for deep-sea and recovers the oil.
Semisubmersible platform floor space is large, and carrying capacity is large, and wind loading rating is strong, and construction difficulty is low, mobile performance in place is good again, but because its drinking water is more shallow, under severe sea condition, heaving is excessive, cannot adopt dry tree to recover the oil, therefore be used for deep-sea oil gas probing, cannot be used for production of hydrocarbons.
Tension leg platform adopts tension leg system that platform and seafloor foundation are fixed together, and makes platform motion very little, is similar to rigidity.But along with the depth of water increases, platform cost increases sharply, and the problems such as design and installation difficulty increase that tension leg system deadweight is excessive and basic be may there is, deep-sea oil gas exploitation and production are not suitable for.
Spar platform center of gravity is under centre of buoyancy, and exercise performance is good, can use rigid riser and dry tree to recover the oil, and reduces production costs.Existing Spar platform mainly contains three kinds of versions: first generation tradition Spar platform, second generation truss-like Spar platform and third generation polystyle Spar platform, wherein, traditional type and the hard cabin of truss-like main body part are large-diameter deep drinking water cylinder, build difficulty and cost all very high, polystyle spar adopts some Small Cylindrical bodies to bundle the cylinder with large diameter before replacing, reduced construction difficulty, but capacity weight is restricted.On the whole, Spar platform exists that to build difficulty larger, poor mobility, the shortcoming such as offshore lifting platform upper cost is high, and floor space is less.And finding after deliberation, due to its motion natural period and profile impact, in the time meeting with macrocyclic surging, there is the possibility that Non-linear coupling unsteady motion occurs in existing Spar platform pattern.
Summary of the invention
The present invention is directed to the proposition of above problem, and develop a kind of many columns truss type platform.The technological means that the present invention adopts is as follows:
A kind of many columns truss type platform, comprise platform upper, hard cabin, sectional type center well column, truss-like stage casing, hang down and swing plate, soft cabin, mooring system and riser systems, it is characterized in that: described hard cabin is made up of four cylinders, described upper end, hard cabin and described platform upper are fixedly linked, and lower end, described hard cabin is provided with fairlead; Lower end, described hard cabin is fixedly connected with corresponding with it upper end, described truss-like stage casing, and lower end, described truss-like stage casing is fixedly connected with described soft cabin; Described sectional type center well column is placed in the center in described hard cabin, described sectional type center well column is two sections of closed center well columns, the epimere diameter of described sectional type center well column is less than the hypomere of described sectional type center well column, the epimere strut length of described sectional type center well column and described hard cabin equal in length, the lower segment length of described sectional type center well column equals the length in described truss-like stage casing and the height sum in described soft cabin; Described mooring system is fixedly connected with the fairlead of lower end, described hard cabin.
As preferably, in the time that platform moves boat, four cylinders in described hard cabin can be promoted on the deck of described platform upper by lifting mechanism, and the hypomere center well column of described sectional type center well column can overlap and rise to fragment position.
As preferably, describedly hang down that to swing plate be four, be shaped as squarely, the length of side equates with the quadrangle length of side that four cylinders in described hard cabin surround; Described hanging down swung plate and in the vertical direction described truss-like stage casing is equally divided into four parts; The described vertical plate middle part of swinging is provided with the through hole that can make described sectional type center well column pass.
As preferably, described soft cabin cube structure be provided with permanent ballast tank and ballast chamber in the form of a ring.
As preferably, described mooring system is divided into four groups, and every group is made up of three mooring lines, adopts the catenary mooring of half tensioning, and every mooring line is all anchor chain-wirerope-anchor chain form; Angle between two adjacent groups mooring line is 90 °, and the angle in same group between adjacent two mooring lines is 5 °.
As preferably, described riser systems adopts top tensioned risers, and the top tension force of each standpipe is provided by the buoyancy tank carrying.
The invention has the beneficial effects as follows:
1, ballast is mainly provided by soft cabin, platform bottom, ensures that center of gravity is under centre of buoyancy.Make platform have enough stability and good exercise performance, can support dry tree to recover the oil, cost reduces.
2, distributed column structure, ensures enough large floor space, thereby has larger delelivered payload capability.
3, hard cabin cylinder liftable, can regulate platform drinking water with the depth of water and sea situation, meanwhile, can carry out short range from boat, also need not marine upright process and offshore lifting superstructure, reduce transport and cost of installation.
4, four hard cabin cylinder sizes are relatively little, reduced construction difficulty, can divide and build simultaneously, shortened the construction time.
5, adopt large area entirety to hang down and swings plate, increased platform added mass and damping, make to hang down and swing performance and further promote.
6, center well cylinder can protect standpipe to avoid ocean current wave so that the impact of interior ripple.
7, applicable marine site is extensive, except deep ocean work, also can be used for the exploitation of shallow sea or marginal oil field.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is 1-1 section-drawing of structural representation of the present invention.
Fig. 3 is 2-2 section-drawings of structural representation of the present invention.
Fig. 4 is soft cabin of the present invention schematic diagram.
Fig. 5 is of the present invention from boat or towage schematic diagram.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in detail.
As shown in Figure 1, a kind of many columns truss type platform, comprises platform upper 1, hard cabin 2, sectional type center well column 3, truss-like stage casing 4, hangs down and swing plate 5, soft cabin 6, mooring system 7 and riser systems 8.Described platform upper 1 is the rectangular box being surrounded by watertight bulkhead, ensures that platform upper can provide buoyancy in the time of towage; Be provided with altogether three layers of deck, on uppermost deck, be furnished with drill outfit, territory, crew quarters, helicopter platform etc.Described hard cabin 2 is made up of four small diameter cylinders, is quadrangle and distributes, and cylinder is positioned at tetragonal corner point; The inner waterproof boards that adopt in described hard cabin 2 are separated into multiple cuddies, are full of air, mainly the buoyancy when platform operation to be provided.2 upper ends, described hard cabin and described platform upper 1 are fixedly linked, and 2 lower ends, described hard cabin are provided with fairlead; 2 lower ends, described hard cabin are fixedly connected with corresponding with it 4 upper ends, described truss-like stage casing.Described sectional type center well column 3 is placed in the center (as shown in Figure 2) in described hard cabin 2, riser systems 8 is passed from sectional type center well column, effectively protection riser systems 8 is not subject to the impact of wave flow, and the diameter of center well column 3 can be determined according to the needs of held standpipe number and arrangement form; Described sectional type center well column 3 is two sections of closed center well columns, the epimere diameter of described sectional type center well column 3 is less than the hypomere of described sectional type center well column 3, the epimere strut length of described sectional type center well column 3 and described hard cabin 2 equal in length, the lower segment length of described sectional type center well column 3 equals the length in described truss-like stage casing 4 and the height sum in described soft cabin 6; In the time that platform moves boat, four cylinders in described hard cabin 2 can be promoted on the deck of described platform upper 1 by lifting mechanism, and the hypomere center well column of described sectional type center well column 3 can overlap and rise to fragment position (as shown in Figure 5).In the time of shallow water, center well can remove, and whole platform uses as jack-up platform.Described truss-like stage casing 4 is by forming without the vertical leg of introversion, triatic stay, brace; Describedly hang down that to swing plate 5 be four, in vertical direction, truss-like stage casing 4 is equally divided into four parts, hang down and swing plate 5 for square, the length of side equates with the quadrangle length of side that four cylinders in described hard cabin 2 surround, and hangs down to swinging plate 5 middle parts and be provided with the through hole (as shown in Figure 3) that can make described sectional type center well column 3 pass.Hang down and swing plate center well column is played to reinforcement effect, in the time of platform generation heaving, can provide larger added mass and damping, significantly improve heaving performance, be convenient to the carrying out that drilling well, dry tree are recovered the oil.4 lower ends, described truss-like stage casing are fixedly connected with described soft cabin 6, described soft cabin 6 (as shown in Figure 4) is positioned at the upper/lower positions place of platform, be hollow cube structure, have respectively strut to be connected with center well bottom at four angle points of hollow, play the reinforcement effect to center well; Inside, soft cabin is provided with permanent ballast tank and ballast chamber, can make like this center of gravity drop under centre of buoyancy, improves platform stability.Described mooring system 7 is divided into four groups, and every group is made up of three mooring lines, adopts the catenary mooring of half tensioning, and every mooring line is all anchor chain-wirerope-anchor chain form; Angle between two adjacent groups mooring line is 90 °, and the angle in same group between adjacent two mooring lines is 5 °, and fairlead height is consistent with platform center of gravity.Mooring line can limit the motion of platform in horizontal surface, and company's cable of employing connects Structure Decreasing manufacturing cost.The present invention occupies huge hydrospace, can be according to actual conditions uniform dynamic positioning system (DPS) on the hard cabin 2 at height of gravitational center place, in order to auxiliary positioning and convenient mobile.Described mooring system 7 is fixedly connected with the fairlead of 2 lower ends, described hard cabin.Described riser systems 8 adopts top tension type, recovers the oil to realize dry tree.Standpipe is distributed in center well column 3, has buoyancy tank to be attached thereto in riser top, ensures the tension requirements of standpipe.
The above; it is only preferably detailed description of the invention of the present invention; but protection scope of the present invention is not limited to this; any be familiar with those skilled in the art the present invention disclose technical scope in; be equal to replacement or changed according to technical scheme of the present invention and inventive concept thereof, within all should being encompassed in protection scope of the present invention.
Claims (6)
1. column truss type platform more than a kind, comprise platform upper (1), hard cabin (2), sectional type center well column (3), truss-like stage casing (4), vertical plate (5), soft cabin (6), mooring system (7) and the riser systems (8) of swinging, it is characterized in that: described hard cabin (2) is made up of four cylinders, (2) upper end, described hard cabin and described platform upper (1) are fixedly linked, and lower end, described hard cabin (2) is provided with fairlead, lower end, described hard cabin (2) is fixedly connected with corresponding with it upper end, described truss-like stage casing (4), and lower end, described truss-like stage casing (4) is fixedly connected with described soft cabin (6), described sectional type center well column (3) is placed in the center in described hard cabin (2), described sectional type center well column (3) is two sections of closed center well columns, the epimere diameter of described sectional type center well column (3) is less than the hypomere of described sectional type center well column (3), the epimere strut length of described sectional type center well column (3) and described hard cabin (2) equal in length, the lower segment length of described sectional type center well column (3) equals the length in described truss-like stage casing (4) and the height sum in described soft cabin (6), described mooring system (7) is fixedly connected with the fairlead of lower end, described hard cabin (2).
2. many columns of one truss type platform according to claim 1, it is characterized in that: in the time that platform moves boat, four cylinders in described hard cabin (2) can be promoted on the deck of described platform upper (1) by lifting mechanism, and the hypomere center well column of described sectional type center well column (3) can overlap and rise to fragment position.
3. many columns of one truss type platform according to claim 1, is characterized in that: describedly hang down that to swing plate (5) be four, be shaped as squarely, the length of side equates with the quadrangle length of side that four cylinders in described hard cabin (2) surround; Described hanging down swung plate (5) and in the vertical direction described truss-like stage casing (4) is equally divided into four parts; Described vertical plate (5) middle part of swinging is provided with the through hole that can make described sectional type center well column (3) pass.
4. many columns of one truss type platform according to claim 1, is characterized in that: described soft cabin (6) cube structure be provided with permanent ballast tank and ballast chamber in the form of a ring.
5. many columns of one truss type platform according to claim 1, it is characterized in that: described mooring system (7) is divided into four groups, every group is made up of three mooring lines, adopts the catenary mooring of half tensioning, and every mooring line is all anchor chain-wirerope-anchor chain form; Angle between two adjacent groups mooring line is 90 °, and the angle in same group between adjacent two mooring lines is 5 °.
6. many columns of one truss type platform according to claim 1, is characterized in that: described riser systems (8) adopts top tensioned risers, and the top tension force of each standpipe is provided by the buoyancy tank carrying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110445755.9A CN102501949B (en) | 2011-12-27 | 2011-12-27 | Truss type platform with multiple upright columns |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110445755.9A CN102501949B (en) | 2011-12-27 | 2011-12-27 | Truss type platform with multiple upright columns |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102501949A CN102501949A (en) | 2012-06-20 |
| CN102501949B true CN102501949B (en) | 2014-10-29 |
Family
ID=46214105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110445755.9A Active CN102501949B (en) | 2011-12-27 | 2011-12-27 | Truss type platform with multiple upright columns |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102501949B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103010417A (en) * | 2012-12-21 | 2013-04-03 | 天津大学 | Offshore wind power floating foundation suitable for small water plane with water depth below 100m |
| CN104973225B (en) * | 2015-07-08 | 2017-10-20 | 中国海洋石油总公司 | A kind of floating production platform |
| CN107235125A (en) * | 2017-05-24 | 2017-10-10 | 浙江大学 | A kind of multicolumn spar types floating fan platform |
| CN109866888B (en) * | 2019-03-25 | 2020-03-03 | 中国海洋石油集团有限公司 | Relative motion restraining device for dry tree semi-submersible platform heave plate and main hull |
| CN111232142B (en) * | 2020-01-15 | 2020-10-27 | 中国海洋石油集团有限公司 | Horizontal flexible bearing structure of formula riser is opened on top |
| CN111439347B (en) * | 2020-04-20 | 2020-10-27 | 中海油研究总院有限责任公司 | Self-installation single-upright-column platform and installation method thereof |
| CN112088815A (en) * | 2020-09-10 | 2020-12-18 | 上海交通大学 | Deep and open sea development platform combining Spar type floating fans and culture net cages capable of shifting circumferentially |
| CN112977743A (en) * | 2021-04-14 | 2021-06-18 | 哈尔滨工业大学（深圳） | Semi-submersible type fan base and floating type fan |
| CN114176028B (en) * | 2021-12-03 | 2023-04-14 | 浙江海洋大学 | Lifting type cultivation ship |
| CN114313128B (en) * | 2022-01-13 | 2024-03-29 | 东北石油大学 | Floating box mooring type ocean damping platform and construction method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998029299A1 (en) * | 1996-12-31 | 1998-07-09 | Shell Internationale Research Maatschappij B.V. | Spar with features against vortex induced vibrations |
| US6309141B1 (en) * | 1997-12-23 | 2001-10-30 | Shell Oil Company | Gap spar with ducking risers |
| CN1876482A (en) * | 2006-06-29 | 2006-12-13 | 上海交通大学 | Multiple column truss type single column platform system |
| CN101007562A (en) * | 2007-01-18 | 2007-08-01 | 上海交通大学 | Multiple column truss type spar platform with central well |
| CN101475049A (en) * | 2009-01-20 | 2009-07-08 | 大连理工大学 | DDMS deep draft column platform |
| CN101618757A (en) * | 2008-07-02 | 2010-01-06 | 中船重工船舶设计研究中心有限公司 | A kind of SPAR platform hard cabin |
| CN102167141A (en) * | 2011-03-07 | 2011-08-31 | 中船重工船舶设计研究中心有限公司 | Box-shaped truss type four-stand column deep water platform system with asymmetric soft cabin |
| CN202414124U (en) * | 2011-12-27 | 2012-09-05 | 大连理工大学 | Multi-vertical-column truss type platform |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7565877B2 (en) * | 2006-08-16 | 2009-07-28 | Technip France | Spar platform having closed centerwell |
-
2011
- 2011-12-27 CN CN201110445755.9A patent/CN102501949B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998029299A1 (en) * | 1996-12-31 | 1998-07-09 | Shell Internationale Research Maatschappij B.V. | Spar with features against vortex induced vibrations |
| US6309141B1 (en) * | 1997-12-23 | 2001-10-30 | Shell Oil Company | Gap spar with ducking risers |
| CN1876482A (en) * | 2006-06-29 | 2006-12-13 | 上海交通大学 | Multiple column truss type single column platform system |
| CN101007562A (en) * | 2007-01-18 | 2007-08-01 | 上海交通大学 | Multiple column truss type spar platform with central well |
| CN101618757A (en) * | 2008-07-02 | 2010-01-06 | 中船重工船舶设计研究中心有限公司 | A kind of SPAR platform hard cabin |
| CN101475049A (en) * | 2009-01-20 | 2009-07-08 | 大连理工大学 | DDMS deep draft column platform |
| CN102167141A (en) * | 2011-03-07 | 2011-08-31 | 中船重工船舶设计研究中心有限公司 | Box-shaped truss type four-stand column deep water platform system with asymmetric soft cabin |
| CN202414124U (en) * | 2011-12-27 | 2012-09-05 | 大连理工大学 | Multi-vertical-column truss type platform |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102501949A (en) | 2012-06-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102501949B (en) | Truss type platform with multiple upright columns | |
| CN107697238B (en) | Deep-water floating type multifunctional dry-tree semi-submersible platform and offshore installation method thereof | |
| CN101475048B (en) | Novel sea deep water buoy platform | |
| CN101857072B (en) | Unconditional stability equipped deep-draft floating production platform and offshore installation method thereof | |
| CN201580542U (en) | Single-pole platform of triangular truss | |
| CN203007918U (en) | Self-lifting type drilling platform based on truss-type stake legs | |
| AU2005226752B2 (en) | Single column extendable draft offshore platform | |
| CN105151241A (en) | Multi-stand-column semi-submersible platform for cylindrical floating box | |
| CN104627332A (en) | Floating type self-elevating drilling platform | |
| CN201961509U (en) | Unconditional stability equipped deep-draft floating oil production platform | |
| CN108163158A (en) | A kind of extension type heave plate water conservancy diversion closure assembly | |
| NO340240B1 (en) | SAVE truck buoy construction | |
| CN105035278A (en) | Low heave semi-submersible offshore structure | |
| CN105339651A (en) | Platform for tidal turbines | |
| CN109866887A (en) | The oblique self-stabilization type semi-submerged platform of column outside a kind of band | |
| US7270071B1 (en) | Deep draft semisubmersible movable offshore structure | |
| CN202414124U (en) | Multi-vertical-column truss type platform | |
| CN201647096U (en) | Modular platform for deep draft truss column | |
| CN201816730U (en) | Low-heaving semi-submersible type platform hull | |
| CN102167141A (en) | Box-shaped truss type four-stand column deep water platform system with asymmetric soft cabin | |
| US10494063B1 (en) | Offshore floating drilling platform for operation in ice-infested waters and harsh environment | |
| CA2985948C (en) | Floating production unit and method of installing a floating production unit | |
| CN204589969U (en) | Be applicable to the small modular jack-up unit of greater coasting area operation | |
| CN109823484A (en) | A kind of floating box structure inhibiting platform heaving | |
| CN103482036A (en) | Buoyancy tower type ocean platform |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |